How to get the reverse routing? - php

Question

I have a rules in routing config
/**
* Format
* [controller, action($id,...), module]
*
* s: - string
* i: - integer
* {placeholder} - for replace in URL
*/
$rules = [
'/' => ['site', 'index'],
'/[s:action]' => ['site', '{action}'],
'/[s:action]/[s:controller]' => ['{controller}', '{action}'],
'/[s:module]/[s:controller]/[i:id]' => ['{controller}', 'view', '{module}'],
'/[s:module]/[s:controller]/[s:action]/[i:id]' => ['{controller}', '{action}', '{module}'],
'/[s:controller]/[i:id]/[i:id2]/[i:id3]' => ['{controller}', 'parse'],
];
How to get the reverse routing?
//Full URL => Rewrite URL
$results = [
'/' => '/',
'site/index' => '/',
'site/login' => '/login',
'info/user' => '/user/info',
'user/profile/view/123' => '/user/profile/123',
'user/profile/edit/123' => '/user/profile/edit/123',
];
How to do it correctly for best performance?
Update This is routing code
For parse pattern in previous step.
As I understand to be treated as templates and routing parameters, to form the final path.
function checkRule($path, $pattern) {
$params = [];
if ($pattern === '*') {
//Everyone
$match = true;
} elseif (isset($pattern[0]) && $pattern[0] === '#') {
//Custom regexp
$pattern = '`' . substr($pattern, 1) . '`u';
$match = preg_match($pattern, $path, $params);
} else {
//Parse pattern
$n = isset($pattern[0]) ? $pattern[0] : null;
$route = null;
$regex = false;
$j = 0;
$i = 0;
// Find the longest non-regex substring and match it against the URI
while (true) {
if (!isset($pattern[$i])) {
break;
}
if (false === $regex) {
$c = $n;
$regex = $c === '[' || $c === '(' || $c === '.';
if (false === $regex && false !== isset($pattern[$i + 1])) {
$n = $pattern[$i + 1];
$regex = $n === '?' || $n === '+' || $n === '*' || $n === '{';
}
if (false === $regex && $c !== '/' && (!isset($path[$j]) || $c !== $path[$j])) {
return null;
}
$j++;
}
$route .= $pattern[$i++];
}
$regex = self::compileRoute($route);
$match = preg_match($regex, $path, $params);
}
if ($match) {
return $params;
}
return null;
}
function compileRoute($route) {
if (preg_match_all('`(/|\.|)\[([^:\]]*+)(?::([^:\]]*+))?\](\?|)`', $route, $matches, PREG_SET_ORDER)) {
$matchTypes = self::$matchTypes;
foreach ($matches as $match) {
list($block, $pre, $type, $param, $optional) = $match;
if (isset($matchTypes[$type])) {
$type = $matchTypes[$type];
}
if ($pre === '.') {
$pre = '\.';
}
if ($param !== '') {
$param = "?P<{$param}>";
}
if ($optional !== '') {
$optional = '?';
}
$pattern = "(?:{$pre}({$param}{$type})){$optional}";
$route = str_replace($block, $pattern, $route);
}
}
return "`^{$route}$`u";
}